CN209802143U - Energy-saving heat exchange device for realizing low-temperature-difference double-phase change - Google Patents
Energy-saving heat exchange device for realizing low-temperature-difference double-phase change Download PDFInfo
- Publication number
- CN209802143U CN209802143U CN201920360359.8U CN201920360359U CN209802143U CN 209802143 U CN209802143 U CN 209802143U CN 201920360359 U CN201920360359 U CN 201920360359U CN 209802143 U CN209802143 U CN 209802143U
- Authority
- CN
- China
- Prior art keywords
- energy
- tube
- heat exchange
- low temperature
- pass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a realize energy-conserving heat transfer device of poor two-phase transition of low temperature, including rectifying column tower cauldron, forced circulation pump, energy-conserving heat exchanger, rectifying column tower cauldron pass through the pipeline with forced circulation pump link to each other, forced circulation pump pass through the pipeline with energy-conserving heat exchanger link to each other, energy-conserving heat exchanger pass through the pipeline with rectifying column tower cauldron link to each other. Realize energy-conserving heat transfer device of low temperature difference double-phase transition pass through energy-conserving heat exchanger, carry out the heat transfer with the cold and hot material of low temperature difference, realize that the both sides material is whole or partial phase transition, satisfy the technological requirement, reach energy-conserving purpose.
Description
Technical Field
The utility model belongs to the economizer field especially relates to an realize energy-conserving heat transfer device of poor two phase transition of low temperature.
Background
In a traditional chemical device, a rectifying tower needs to be provided with a tower top condenser and a tower kettle (or middle) reboiler, wherein the tower top condenser condenses a tower top gas phase into a liquid phase by utilizing an external cold source (such as circulating water, chilled water and the like) and the liquid phase is used as tower top reflux and extraction; the reboiler in the tower bottom (or middle) heats the liquid material in the tower bottom by using an external heat source (such as steam, heat-conducting oil, etc.) to realize partial vaporization and return to the tower bottom, thereby realizing gas-liquid two-phase mass and heat transfer of the material in the tower. The conventional tower system heat balance configuration consumes external cold source and heat source, increasing the operation cost of the device.
Disclosure of Invention
In view of this, the utility model aims at providing an realize energy-conserving heat transfer device of poor two phase transition of low temperature, high temperature top of the tower gaseous phase (or make this top of the tower gaseous phase heat up through the pressure boost means) gives low temperature tower cauldron liquid phase heat transfer in the usable device, reaches the purpose of top of the tower gaseous phase condensation and the vaporization of tower cauldron liquid phase part simultaneously, need not plus or reduce external heating source and cold source, reaches energy-conserving purpose.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an energy-saving heat exchange device for realizing low-temperature-difference double-phase change comprises a rectifying tower kettle, a forced circulation pump and an energy-saving heat exchanger, wherein the rectifying tower kettle is connected with the forced circulation pump through a pipeline;
The energy-saving heat exchanger comprises a tube box, wherein a tube body is arranged in the tube box, the tube body comprises a middle shell pass channel with a U-shaped structure and a plurality of heat exchange tubes with U-shaped structures, and the heat exchange tubes surround the outer side of the middle shell pass channel;
the heat exchange tube is one of a finned tube, a longitudinal groove tube or a high flux tube.
Furthermore, the tube box is provided with a tube pass inlet, a tube pass outlet, a shell pass inlet, a shell pass liquid phase outlet and a shell pass gas phase outlet, the tube pass outlet, the shell pass inlet and the shell pass liquid phase outlet are all positioned at the lower part of the tube box, and the tube pass inlet and the shell pass gas phase outlet are all positioned at the upper part of the tube box.
Furthermore, one end of the middle shell pass channel is provided with a middle inlet pipeline, the other end of the middle shell pass channel is provided with a middle outlet pipeline, and the middle inlet pipeline is connected with the shell pass inlet.
Furthermore, the diameter of the shell side inlet is 2-3 times of the diameter of the middle inlet pipeline.
furthermore, both ends of the middle outlet pipeline are provided with open outlets.
Furthermore, the outer side of the pipe body is provided with a plurality of fixing frames, and the inner side of each fixing frame is provided with a plurality of fixing seats matched with each heat exchange pipe.
furthermore, a plurality of pipe body baffle plates are arranged on the outer side of the pipe body, a plurality of box body baffle plates are arranged at the bottom of the inner side of the pipe box, and the box body baffle plates and the pipe body baffle plates are arranged in a staggered mode.
Furthermore, an overflow plate is arranged at the bottom of the inner side of the tube box and is positioned between the tube body and the shell side liquid phase outlet. The height of the overflow plate is higher than that of the pipe body.
The motor of the forced circulation pump can be a common motor or a variable frequency motor.
Compared with the prior art, realize energy-conserving heat transfer device of low temperature difference double-phase transition have following advantage:
(1) realize energy-conserving heat transfer device of low temperature difference double-phase transition pass through energy-conserving heat exchanger, carry out the heat transfer with the cold and hot material of low temperature difference, realize that the both sides material is whole or partial phase transition, satisfy the technological requirement, reach energy-conserving purpose.
(2) Realize energy-conserving heat transfer device of poor two phase changes of low temperature through attached pipe-line system and well system circulating pump by force, accessible adjustment cold side material feeding volume, adjustment cold side material ejection of compact temperature and vaporization fraction make the operation more nimble.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
Fig. 1 is a schematic view of an energy-saving heat exchange device for realizing low temperature difference double phase change according to an embodiment of the present invention;
Fig. 2 is a schematic view of an energy-saving heat exchanger according to an embodiment of the present invention;
Fig. 3 is a cross-sectional view of a heat exchange tube according to an embodiment of the present invention.
Description of reference numerals:
1-rectifying tower kettle; 2-forced circulation pump; 3-energy-saving heat exchanger; 31-a tube box; 32-tube pass inlet; 33-tube side outlet; 34-shell side inlet; 35-box baffle plate; 36-heat exchange tube; 37-shell side liquid phase outlet; 38-shell side gas phase outlet; 39-overflow plate; 310-intermediate shell side channel; 311-intermediate inlet conduit; 312 — an intermediate outlet conduit; 313-a fixing frame; 314-tube baffles; 315-fixed seat.
Detailed Description
it should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-3, an energy-saving heat exchanger for realizing low temperature difference double phase transition comprises a rectifying tower kettle 1, a forced circulation pump 2 and an energy-saving heat exchanger 3, wherein the rectifying tower kettle 1 is connected with the forced circulation pump 2 through a pipeline, the forced circulation pump 2 is connected with the energy-saving heat exchanger 3 through a pipeline, and the energy-saving heat exchanger 3 is connected with the rectifying tower kettle 1 through a pipeline;
The energy-saving heat exchanger 3 comprises a tube box 31, a tube body is arranged in the tube box 31, the tube body comprises a middle shell-side channel 310 with a U-shaped structure and a plurality of heat exchange tubes 36 with a U-shaped structure, and the heat exchange tubes 36 surround the outer side of the middle shell-side channel 310;
The heat exchange tube 36 is a high-flux tube with a porous surface. Can maintain boiling under low temperature difference, and achieve the purpose of enhancing heat transfer.
The tube box 31 is provided with a tube pass inlet 32, a tube pass outlet 33, a shell pass inlet 34, a shell pass liquid phase outlet 37 and a shell pass gas phase outlet 38, the tube pass outlet 33, the shell pass inlet 34 and the shell pass liquid phase outlet 37 are all positioned at the lower part of the tube box 31, and the tube pass inlet 32 and the shell pass gas phase outlet 38 are all positioned at the upper part of the tube box 31.
one end of the middle shell pass channel 310 is provided with a middle inlet pipeline 311, the middle inlet pipeline 311 is connected with the shell pass inlet 34, and the other end is provided with a middle outlet pipeline 312.
The diameter of the shell-side inlet 34 is 3 times the diameter of the intermediate inlet pipe 311. The middle position of the shell-side inlet 34 is connected with a middle inlet pipeline 311, materials are led into the middle shell-side channel 310, and the spare part is led into the pipe box 31.
Open outlets are provided at both ends of the intermediate outlet conduit 312. The discharging of the materials is facilitated, and then the shell pass is carried out along with the materials in the tube box 31, so that the heat exchange efficiency is improved.
A plurality of fixing frames 313 are arranged on the outer side of the pipe body, and a plurality of fixing seats 315 matched with each heat exchange pipe 36 are arranged on the inner side of each fixing frame 313. The heat exchanging pipe 36 can be stably fixed.
the outer side of the pipe body is provided with a plurality of pipe body baffle plates 314, the bottom of the inner side of the pipe box 31 is provided with a plurality of box body baffle plates 35, and the box body baffle plates 35 and the pipe body baffle plates 314 are arranged in a staggered mode. Further improving the travel time of the material.
An overflow plate 39 is arranged at the bottom of the inner side of the tube box 31, and the overflow plate 39 is positioned between the tube body and the shell side liquid phase outlet 37. The height of the overflow plate 39 is higher than that of the pipe body. Ensuring that the heat exchange tube is submerged in the material.
The motor of the forced circulation pump 2 is a common motor.
the working process is as follows: a cold side liquid phase enters the forced circulation pump 23 through an inlet pipeline of the forced circulation pump 2, enters the energy-saving heat exchanger 3 through a shell pass inlet 34 pipeline, a hot side gas phase material enters the energy-saving heat exchanger 3 through a tube pass inlet 32 pipeline, is extracted through a tube pass outlet 33 pipeline after partial or all phase changes, and is extracted through a shell pass gas phase outlet 38 pipeline after the cold side liquid phase exchanges partial phase changes through the energy-saving heat exchanger 3, and the liquid phase part passes through a baffle plate and is extracted through a shell pass liquid phase outlet 37 through an overflow plate 39.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a realize energy-conserving heat transfer device of poor two phase transition of low temperature which characterized in that: the energy-saving heat exchanger is connected with the rectifying tower kettle through a pipeline;
The energy-saving heat exchanger comprises a tube box, wherein a tube body is arranged in the tube box, the tube body comprises a middle shell pass channel with a U-shaped structure and a plurality of heat exchange tubes with U-shaped structures, and the heat exchange tubes surround the outer side of the middle shell pass channel;
The heat exchange tube is one of a finned tube, a longitudinal groove tube or a high flux tube.
2. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 1, is characterized in that: the tube box is provided with a tube pass inlet, a tube pass outlet, a shell pass inlet, a shell pass liquid phase outlet and a shell pass gas phase outlet, the tube pass outlet, the shell pass inlet and the shell pass liquid phase outlet are all positioned at the lower part of the tube box, and the tube pass inlet and the shell pass gas phase outlet are all positioned at the upper part of the tube box.
3. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 2, is characterized in that: one end of the middle shell pass channel is provided with a middle inlet pipeline, the other end of the middle shell pass channel is provided with a middle outlet pipeline, and the middle inlet pipeline is connected with the shell pass inlet.
4. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 3, is characterized in that: the diameter of the shell side inlet is 2-3 times of the diameter of the middle inlet pipeline.
5. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 3, is characterized in that: and open outlets are arranged at two ends of the middle outlet pipeline.
6. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 1, is characterized in that: the outer side of the pipe body is provided with a plurality of fixing frames, and the inner side of each fixing frame is provided with a plurality of fixing seats matched with each heat exchange pipe.
7. The energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 1, is characterized in that: the outer side of the pipe body is provided with a plurality of pipe body baffle plates, the bottom of the inner side of the pipe box is provided with a plurality of box body baffle plates, and the box body baffle plates and the pipe body baffle plates are arranged in a staggered mode.
8. the energy-saving heat exchange device for realizing the double-phase change of the low temperature difference as claimed in claim 7, is characterized in that: and an overflow plate is arranged at the bottom of the inner side of the tube box and is positioned between the tube body and the shell side liquid phase outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360359.8U CN209802143U (en) | 2019-03-19 | 2019-03-19 | Energy-saving heat exchange device for realizing low-temperature-difference double-phase change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920360359.8U CN209802143U (en) | 2019-03-19 | 2019-03-19 | Energy-saving heat exchange device for realizing low-temperature-difference double-phase change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209802143U true CN209802143U (en) | 2019-12-17 |
Family
ID=68825614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920360359.8U Active CN209802143U (en) | 2019-03-19 | 2019-03-19 | Energy-saving heat exchange device for realizing low-temperature-difference double-phase change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209802143U (en) |
-
2019
- 2019-03-19 CN CN201920360359.8U patent/CN209802143U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017136B (en) | A kind of vertical shell-and-tube heat exchanger | |
| CN202582275U (en) | Multi-fluid shell-and-tube heat exchanger | |
| CN204787951U (en) | Formula of backflowing sleeve pipe evaporimeter | |
| US9903659B2 (en) | Low pressure chiller | |
| CN104864747A (en) | Energy-saving heating network heater | |
| WO1996006665A1 (en) | Internal heat exchange type distillation column | |
| CN204787943U (en) | U jacket tube -type evaporator | |
| JP5971177B2 (en) | Evaporation and concentration equipment for aqueous caustic soda | |
| CN102384682B (en) | Internal-circulation special high-efficiency heat exchanger | |
| CN209802143U (en) | Energy-saving heat exchange device for realizing low-temperature-difference double-phase change | |
| CN102188834A (en) | Internal heat integration film-reduction distillation device and heat exchange wall structure | |
| CN204705242U (en) | Energy-conservation heat exchangers for district heating | |
| CN208205842U (en) | A kind of shell-and-tube cooler | |
| CN108469184A (en) | A kind of shell-and-tube cooler | |
| CN102829646A (en) | Inner finned tube condenser | |
| CN109458853A (en) | A kind of condensing heat exchanger with U-shaped vapor-liquid separating structure | |
| CN104390496B (en) | Vertical type condensing heat exchanger and heat exchange method thereof | |
| CN103471082A (en) | Three-section horizontal type feed water heater for 200MW units | |
| CN201311221Y (en) | Header type integral heat pipe | |
| CN202915770U (en) | Lamella heat exchanger | |
| CN208269420U (en) | A kind of water-heater water tank and air energy water heater | |
| CN100458315C (en) | Condenser of gravitational force refluxing type ammonia water absorbing refrigerator | |
| TW552395B (en) | Constant flow velocity vapor-liquid heat exchanger | |
| CN105466234A (en) | Double-loop water-cooling flue gas condenser | |
| CN110307742A (en) | The plate-fin heat exchanger and heat-exchange method of multi-stage separation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |